松嫩盆地是一个生态环境脆弱地区。
Songnen basin is a vulnerability area ecological environment geology.
金沙江干热河谷地区是我国生态环境脆弱地区之一，土壤退化十分严重。
The dry and hot valley of Jingsha River is one of fragile ecological environment areas in China, where the soil degradation was very serious.
但是随着全球变暖向高海拔地区蔓延，一个不受欢迎的居民进入了这个脆弱的生态环境：山地松树甲虫。
But as global warming snakes its way into higher altitudes, a less-welcome resident in taking up space in this fragile ecosystem: the mountain pine beetle.
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